It certainly is an easy job. You get your mechanic to save a set of plugs
for your engine from some other owner who has more money than good sense and
changes them with a few thousand hours left on them, you sent this set to
AIrcraft Spark Plug Service in Van Nuys CA, and they send you back
surgically clean, gapped, and "bomb tested" plugs with a new gasket in a
sealed plastic tube for about $4 a plug.

If one of the plugs will not pass muster, they will sell you a good
reconditioned plug in approximately the same wear condition as the bad plug
for about $8.

This is the inexpensive way to do it.



Jim